Words That Rhyme With "Kelvin's" :

2 syllables:

Bevins, dwellings, elfin, helen's, levins, Melvin, Nevins, sellings, shellings, spellings, tellin, wells's, yellin'

3 syllables:

Helvellyn, Llewellyn, Medellin, vitellin, vitelline

4 syllables:

gibberellin

5 syllables:

ovovitellin